It was at midnight ______ he got to his friend’s house. 
#69757
A
when
B
since
C
that 
D
while
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Now the question that you must carefully consider is _____ can be put into practice.
#68847
A
how what you have learned
B
how you have learned
C
that why you have learned
D
how that you have learned
-- What’s the matter with you?--- _______ the window, my finger was cut unexpectedly.
#68151
A
Cleaning
B
To clean
C
While cleaning
D
While I was cleaning